Students are introduced to light and filters, build
a photocell detector and use it to detect different colors of light,
learn that infrared light is reflected in the same manner as visible light,
and that infrared in some cases behaves like visible light and other cases
behaves very differently.

Using your television's remote control as a source of infrared radiation,
you will compare the behavior of a beam of infrared radiation to that of a
beam of visible light. You will see how each reacts when different materials
are placed in its path.